/*
 * Copyright 2009 Red Hat, Inc.
 *
 * Red Hat licenses this file to you under the Apache License, version 2.0
 * (the "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at:
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package com.organic.cell.http.internal.snoop;

import java.net.InetSocketAddress;
import java.net.URI;
import java.util.concurrent.Executors;

import org.jboss.netty.bootstrap.ClientBootstrap;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFuture;
import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
import org.jboss.netty.handler.codec.http.CookieEncoder;
import org.jboss.netty.handler.codec.http.DefaultHttpRequest;
import org.jboss.netty.handler.codec.http.HttpHeaders;
import org.jboss.netty.handler.codec.http.HttpMethod;
import org.jboss.netty.handler.codec.http.HttpRequest;
import org.jboss.netty.handler.codec.http.HttpVersion;

/**
 * A simple HTTP client that prints out the content of the HTTP response to
 * {@link System#out} to test {@link HttpServer}.
 *
 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
 * @author Andy Taylor (andy.taylor@jboss.org)
 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
 * @version $Rev: 2226 $, $Date: 2010-03-31 11:26:51 +0900 (Wed, 31 Mar 2010) $
 */
public class HttpClient {

  public static void main(String[] args) throws Exception {
    if (args.length != 1) {
      System.err.println("Usage: " + HttpClient.class.getSimpleName() +
          " <URL>");
      return;
    }

    URI uri = new URI(args[0]);
    String scheme = uri.getScheme() == null ? "http" : uri.getScheme();
    String host = uri.getHost() == null ? "localhost" : uri.getHost();
    int port = uri.getPort();
    if (port == -1) {
      if (scheme.equalsIgnoreCase("http")) {
        port = 80;
      } else if (scheme.equalsIgnoreCase("https")) {
        port = 443;
      }
    }

    if (!scheme.equalsIgnoreCase("http") && !scheme.equalsIgnoreCase("https")) {
      System.err.println("Only HTTP(S) is supported.");
      return;
    }

    boolean ssl = scheme.equalsIgnoreCase("https");

    // Configure the client.
    ClientBootstrap bootstrap = new ClientBootstrap(new NioClientSocketChannelFactory(Executors.newCachedThreadPool(), Executors.newCachedThreadPool()));

    // Set up the event pipeline factory.
    bootstrap.setPipelineFactory(new HttpClientPipelineFactory(ssl));

    // Start the connection attempt.
    ChannelFuture future = bootstrap.connect(new InetSocketAddress(host, port));

    // Wait until the connection attempt succeeds or fails.
    Channel channel = future.awaitUninterruptibly().getChannel();
    if (!future.isSuccess()) {
      future.getCause().printStackTrace();
      bootstrap.releaseExternalResources();
      return;
    }

    // Prepare the HTTP request.
    HttpRequest request = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, uri.toASCIIString());
    request.setHeader(HttpHeaders.Names.HOST, host);
    request.setHeader(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
    request.setHeader(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);

    // Set some example cookies.
    CookieEncoder httpCookieEncoder = new CookieEncoder(false);
    httpCookieEncoder.addCookie("my-cookie", "foo");
    httpCookieEncoder.addCookie("another-cookie", "bar");
    request.setHeader(HttpHeaders.Names.COOKIE, httpCookieEncoder.encode());

    // Send the HTTP request.
    channel.write(request);

    // Wait for the server to close the connection.
    channel.getCloseFuture().awaitUninterruptibly();

    // Shut down executor threads to exit.
    bootstrap.releaseExternalResources();
  }
}
